djay Pro AI for Mac and djay Pro AI for iOS use the same Sync behavior. There are two ways to sync music within djay Pro AI: Beat Sync and Tempo Sync.
Enabling Sync on one playing Deck will adjust the Deck's BPM to the Master. The Sync button will be outlined in blue and Beat-Synced.
If you now play another track with Sync enabled or enable Sync on an already playing track, the two tracks will be in an active Sync lock and even adjust to changes (e.g. Backspins, Cue Point triggering) of the Master Deck. This state is indicated by a filled-in blue Sync button.
You can deactivate both states by selecting the Sync button again.
In the djay PRO AI settings, under "General" you will find more Sync setting options.
- Sync type: allows you to select whether BPM or the BPMs and Beats should be synced. BPM will only sync the song tempo, whereas BPM and Beats will sync the tempo and the waveforms.
- Beat sync interval: When you are syncing BPM and Beats, you can also choose whether you'd like to sync to 1 or 4 Beats (bars).
The "Maintain on song load" and "Turn off on pause, scratch, or cue jump" options allow you to further control when Sync is active or inactive.